Display device image processing method and system

An image processing and display device technology, applied in image communication, TV system components, static indicators, etc., can solve problems such as reduced screen brightness, gray scale reduction, easy loss of image gray scale, etc., to improve image quality Effect

Inactive Publication Date: 2016-08-17
LE SHI ZHI ZIN ELECTRONIC TECHNOLOGY (TIANJIN) LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing backlight control is easy to lose the gray level of the image and reduce the gray level, which reduces the brightness of the overall picture (dark scene, medium bright scene, high bright scene) and seriously sacrifices the picture quality
At the same time, since the brightness of the backlight does not change with the brightness of the background of the screen, the brightness of the backlight is constant, and the energy consumption is large

Method used

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  • Display device image processing method and system
  • Display device image processing method and system
  • Display device image processing method and system

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Embodiment Construction

[0025] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0026] Such as figure 1 As shown, the present invention provides a method for image processing of a display device, the method comprising the following steps: analyzing the video input signal to obtain a histogram and an average luminance value of a video frame image; adjusting the backlight luminance according to the average luminance value, and ...

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PUM

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Abstract

The invention provides a display device image processing method and a processing system, wherein the method comprises the following steps: analyzing a video input signal so as to obtain a histogram and an average brightness value of a video frame image; regulating backlight brightness in accordance with the average brightness value, and outputting a regulated brightness signal to a backlight source; and dynamically improving the data level of the video input signal in accordance with the histogram, and outputting the regulated video signal to a liquid crystal panel. According the image processing method and the image processing system disclosed by the invention, by dynamically reducing the backlight brightness and by dynamically improving the data level of the video image, the contrast ratio, the field depth and the layering sense of a picture are improved while power consumption is reduced, so that energy is saved, and meanwhile, a picture quality is better improved.

Description

technical field [0001] The present invention relates to the technical field of video image processing, in particular to an image processing method and system for a display device. Background technique [0002] With the continuous development of liquid crystal display technology, LCD TVs are more and more popular due to their high brightness, high gray scale, lightness, thinness, and fashion. With the improvement of their cost performance, more and more families, entertainment Venues and advertising media companies regard LCD TVs as the preferred entertainment display terminal. However, compared with the previous CRT (cathode ray tube, Cathode Ray Tube) TV, the display screen of LCD TV is significantly larger (generally more than 32 inches), and the power consumption thereof has also been significantly improved. Since the liquid crystal screen is a passive display device, a separate backlight source must be provided to display images through the liquid crystal as a controlla...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/34
CPCH04N5/57G09G3/3406
Inventor 罗荣荣
Owner LE SHI ZHI ZIN ELECTRONIC TECHNOLOGY (TIANJIN) LTD
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